COMBINATION VALVE ASSEMBLY WITH PROPORTIONER OVERRIDE

摘要

A combination valve assembly for a dual circuit brake system in which a metering valve is in one circuit, a proportioning valve is in the other circuit, and a hydraulically reset pressure loss warning indicator unit is sensitive to both circuits. Actuation of the warning unit because of pressure loss in the metering valve circuit causes the proportioning valve to be overriden by removing one of the valve elements from a proportioning position so that pressure through the valve is not proportioned.